/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

var zrUtil = require("static/plugins/js/zrender/lib/core/util");

var modelUtil = require("../../util/model");

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

/**
 * @param {Object} finder contains {seriesIndex, dataIndex, dataIndexInside}
 * @param {module:echarts/model/Global} ecModel
 * @return {Object} {point: [x, y], el: ...} point Will not be null.
 */
function _default(finder, ecModel) {
    var point = [];
    var seriesIndex = finder.seriesIndex;
    var seriesModel;

    if (
        seriesIndex == null ||
        !(seriesModel = ecModel.getSeriesByIndex(seriesIndex))
    ) {
        return {
            point: [],
        };
    }

    var data = seriesModel.getData();
    var dataIndex = modelUtil.queryDataIndex(data, finder);

    if (dataIndex == null || dataIndex < 0 || zrUtil.isArray(dataIndex)) {
        return {
            point: [],
        };
    }

    var el = data.getItemGraphicEl(dataIndex);
    var coordSys = seriesModel.coordinateSystem;

    if (seriesModel.getTooltipPosition) {
        point = seriesModel.getTooltipPosition(dataIndex) || [];
    } else if (coordSys && coordSys.dataToPoint) {
        point =
            coordSys.dataToPoint(
                data.getValues(
                    zrUtil.map(coordSys.dimensions, function (dim) {
                        return data.mapDimension(dim);
                    }),
                    dataIndex,
                    true
                )
            ) || [];
    } else if (el) {
        // Use graphic bounding rect
        var rect = el.getBoundingRect().clone();
        rect.applyTransform(el.transform);
        point = [rect.x + rect.width / 2, rect.y + rect.height / 2];
    }

    return {
        point: point,
        el: el,
    };
}

module.exports = _default;
